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Hi,
I changed the throttle cable on my 72 LT-1 (ZIP repro part).
I searched on web, but can't find good pictures of the routing for this cable until firewall.
The cable is routed outside of the vertical shield, but I'm not sure it is correct...
Does anyone have a photo of this cable over its entire length, with and without the vertical shield ?
Sorry I don't have a picture. I do know that on my 77 with similar ign. shielding the throttle cable ran outside the vertical upright. When I changed to a aftermarket intake manifold this became a issue as the aftermarket intake manifold moves the carburetor rearward.
So this is why I am so certain. With the carburetor now centered, moved rearward. I could no longer route the throttle cable outboard of the shielding upright. And routing it inboard of the upright fouled the center cover. I ended up notching the center distributor cover to run the cable through it. It's still that way to this day with yet another intake manifold and EFI.
I had the same question about my 72 LT-1 the other day. I went to Bring A Trailer and did a search on 72 LT-1’s and found several to look at. I noticed that there were several variations…..Mine is pictured below, it helps to blow it up. I can take a better picture tomorrow if you’d like. YMMV.
Thank you for your answers.
I forgeot to say I have a 770 Street Avenger on my engine. Maybe it changes a bit the position of the attaching stud for cable ?
I take some pictures on my current installation. Seems not very correct to me...
my problam is the bending on cable between carb and cable fixation.
my problam is the bending on cable between carb and cable fixation.
Have you tried to route it between the orange bracket and the chrome shielding -- above the PCV hose? I looked in the '72 AIM and there is no routing difference for the LT-1 or LS-5 over the base engine. I'd try to keep it as direct from the firewall as possible.
Thank you very much for this info
I would never have thought to go under the "Electricity" chapter for this kind of info.
As I have often thought, I just have to read the AIM in its entirety to learn it
I will change the cable and see if it is better. To see if it is also valid for Holley carburetors.
I would never have thought to go under the "Electricity" chapter for this kind of info.
As I have often thought, I just have to read the AIM in its entirety to learn it
I came across the routing accidentally when looking at the firewall vacuum piping! "Hey, look at that – it shows the accelerator cable routing!"
Today, I tried the cable mounting like in the AIM.
Was not good in my situation. The cable is more bent than the first trial and I think the routing is not very "natural" :
I went back to this :
But I'm still not happy because of the tension on cable with the vertical shield mounted.
Unfortunately, I didn't take picture of the situation with the cable passes between vertical shield and orange support.This was the mouting way before I changed the cable and it worked for years.
The cable touch the edge of the vertical shield though...
I'll do this tomorrow (and take photos....) : stay tuned
Today, I tried the cable mounting like in the AIM.
Was not good in my situation. The cable is more bent than the first trial and I think the routing is not very "natural" :
I went back to this :
But I'm still not happy because of the tension on cable with the vertical shield mounted.
Unfortunately, I didn't take picture of the situation with the cable passes between vertical shield and orange support.This was the mouting way before I changed the cable and it worked for years.
The cable touch the edge of the vertical shield though...
I'll do this tomorrow (and take photos....) : stay tuned
If it worked for years and you have no reason to suspect anybody ever rerouted it, return it to the way you found it. From the picture it appears the natural bend is between the orange support and the chrome shield
I changed the routing. It seems to be the better way for my application.
I added cable protections on the edges of the vertical shield.
an improvement could be to slightly bend (but it must be removed for that) the cable fixing bracket on the carburetor to have a better alignment with the cable: perhaps this winter...
1972 LT-1 carb throttle cable routing
